<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-29T01:52:08Z</responseDate><request verb="GetRecord" identifier="oai:riubu.ubu.es:10259/7405" metadataPrefix="oai_dc">https://riubu.ubu.es/oai/request</request><GetRecord><record><header><identifier>oai:riubu.ubu.es:10259/7405</identifier><datestamp>2023-03-27T08:07:27Z</datestamp><setSpec>com_10259_3593</setSpec><setSpec>com_10259_5086</setSpec><setSpec>com_10259_2604</setSpec><setSpec>col_10259_3594</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dc="http://purl.org/dc/elements/1.1/" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
<dc:title>Gold(I) Catalysis Applied to the Stereoselective Synthesis of Indeno[2,1-b]thiochromene Derivatives and Seleno Analogues</dc:title>
<dc:creator>Virumbrales Ortiz, Cintia</dc:creator>
<dc:creator>Mahmoud Abd El Aleem Ali, Elremaily</dc:creator>
<dc:creator>Suarez Pantiga, Samuel</dc:creator>
<dc:creator>Fernández Rodríguez, Manuel A.</dc:creator>
<dc:creator>Rodríguez, Félix</dc:creator>
<dc:creator>Sanz Díez, Roberto</dc:creator>
<dc:subject>Carbene compounds</dc:subject>
<dc:subject>Gold</dc:subject>
<dc:subject>Hydrocarbons</dc:subject>
<dc:subject>Molecular structure</dc:subject>
<dc:subject>Reaction products</dc:subject>
<dc:subject>Química orgánica</dc:subject>
<dc:subject>Chemistry, Organic</dc:subject>
<dc:description>A gold(I)-catalyzed cascade reaction for the stereoselective&#xd;
synthesis of sulfur- or selenium-containing indeno[1,2-b]chromene&#xd;
derivatives from o-(alkynyl)styrenes substituted at the triple bond with a&#xd;
thio- or seleno-aryl group is described. The reaction involves a double&#xd;
cyclization process through a proposed key gold−cyclopropyl carbene&#xd;
intermediate that evolves by the intramolecular addition of an aromatic to&#xd;
the cyclopropane ring, affording polycyclic structures. The enantioselective&#xd;
version was studied using gold(I) complexes bearing chiral ligands.</dc:description>
<dc:description>We gratefully acknowledge MICINN (PID2020-115789GBC21), “NextGenerationEU/PRTR” (PDC2021-120825-C21), Junta de Castilla y León, and FEDER (BU049P20) for financial support. The project leading to these results also received funding from the “la Caixa” Foundation, under Agreement LCF/PR/PR18/51130007 (CAIXA-UBU001). C.V. and S.S.-P. thank Junta de Castilla y León (Consejería de Educación) and Fondo Social Europeo for postdoctoral contracts.</dc:description>
<dc:date>2023-02-07T08:26:25Z</dc:date>
<dc:date>2023-02-07T08:26:25Z</dc:date>
<dc:date>2022-10</dc:date>
<dc:type>info:eu-repo/semantics/article</dc:type>
<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
<dc:identifier>1523-7060</dc:identifier>
<dc:identifier>http://hdl.handle.net/10259/7405</dc:identifier>
<dc:identifier>10.1021/acs.orglett.2c03411</dc:identifier>
<dc:identifier>1523-7052</dc:identifier>
<dc:language>eng</dc:language>
<dc:relation>Organic Letters. 2022, V. 24, n. 43, p. 8077-8082</dc:relation>
<dc:relation>https://doi.org/10.1021/acs.orglett.2c03411</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-115789GB-C21/ES/ESTRATEGIAS SINTETICAS SOSTENIBLES PARA LA TRANSFORMACION DIRECTA DE NITROCOMPUESTOS Y DESARROLLO DE NUEVAS REACCIONES CATALIZADAS POR ORO/</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PDC2021-120825-C21/ES/Valorización de productos de la biomasa por catálisis con complejos de dioxomolibdeno/</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/Junta de Castilla y León//BU049P20//Estrategias sintéticas sostenibles para la halogenación directa de nitrocompuestos y la preparación de electrolitos orgánicos para baterías de flujo redox/</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/Fundación Bancaria Caixa d'Estalvis i Pensions de Barcelona//LCF%2FPR%2FPR18%2F51130007/Fluoración Directa de Nitrocompuestos y Sales de Heteroaril Fosfonio: Síntesis de Fluorocompuestos/FluNitroPhos/</dc:relation>
<dc:rights>Atribución 4.0 Internacional</dc:rights>
<dc:rights>http://creativecommons.org/licenses/by/4.0/</dc:rights>
<dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
<dc:format>application/pdf</dc:format>
<dc:publisher>American Chemical Society</dc:publisher>
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